<?php

require_once 'HTMLPurifier/AttrTransform.php';

/**
 * Class for handling width/height length attribute transformations to CSS
 */
class HTMLPurifier_AttrTransform_Length extends HTMLPurifier_AttrTransform
{
	
	var $name;
	var $cssName;
	
	function HTMLPurifier_AttrTransform_Length($name, $css_name = null) {
		$this->name = $name;
		$this->cssName = $css_name ? $css_name : $name;
	}
	
	function transform($attr, $config, &$context) {
		if (!isset($attr[$this->name])) return $attr;
		$length = $this->confiscateAttr($attr, $this->name);
		if(ctype_digit($length)) $length .= 'px';
		$this->prependCSS($attr, $this->cssName . ":$length;");
		return $attr;
	}
	
}

